What is the greatest common factor of 120 60 160?

The amount of energy it takes to lift a box might be a function of which of the following

When you answer this can you explain

Do more republicans (group a) than democrats (group b) favor a bill to make it easier for someone to own a firearm? two hundred republicans and two hundred democrats were asked if they favored a bill that made it easier for someone to own a firearm. how would we write the alternative hypothesis?